JP2869945B2 - Pedestrian road boundary block - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pedestrian boundary block, and more particularly to a block having a drain.

[0002]

2. Description of the Related Art Conventionally, on a road on which a sidewalk is installed, a road surface on which asphalt is paved has a downward slope toward the end thereof, and a sidewalk boundary block is disposed at the boundary between the sidewalk and the road. A road having a predetermined slope to a portion of the roadway along the sidewalk boundary block to fix the sidewalk boundary block, and having a downward slope toward the roadway end side so as to be continuous with the road surface of the roadway. Forming the floor. Water catchment basins are installed in the concrete subgrade along the length of the road.

In such a conventional roadway, for example, when it rains, rainwater collects on a concrete roadbed portion of the roadway and flows along a pedestrian roadway boundary block according to a gradient of the concrete roadbed portion in a longitudinal direction of the roadway. And drained through the catch basin.

Further, instead of installing the pedestrian road boundary block and forming the concrete subgrade section as described above, a road corresponding to the concrete subgrade section is provided at the lower end of the pedestrian road boundary block section corresponding to the pedestrian road boundary block. In some cases, an L-shaped block whose floor is integrally formed in the horizontal direction is installed.
In this case as well, the rainwater flows into the L
It collects on the mold block, flows on the L-shaped block according to the gradient of the L-shaped block in the longitudinal direction of the road, and is drained through the catchment basin.

[0005]

However, in the above-described conventional roadway, the water of the roadway collects on the concrete subgrade or the L-shaped block.
Since the upper surface of the mold block has a gentle slope toward the end of the roadway, the collected water accumulates in a wide width and shallowly. As the ratio of the contact area increases and the water flows along the length of the roadway, the concrete
There has been a problem that the fluid resistance between the mold block and the upper surface is increased, and drainage is difficult.

[0006] By the way, as a curb (pedestrian road boundary block) and an improved drainage, for example, Japanese Utility Model 2-1
No. 8151, there is a curb and drainage gutter in which a large drainage gutter corresponding to a conventional U-groove is installed below the curbstone. There is a problem that a large-scale construction is required.

[0007] As an improvement of the L-shaped block, there is one described in Japanese Utility Model Laid-Open Publication No. 56-59211. A groove having an R-shaped cross section is formed over the inner surface of the groove, and the amount of flowing water can be increased. However, since the inclination of the groove is gentle, the difficulty of flowing can not be sufficiently eliminated, and the width of the groove However, there is a problem that the effective area of the road is reduced because the road is wide.

The present invention has been made in order to solve the above-mentioned problems. By forming a drainage groove which opens on a surface facing a roadway, a large-scale installation work is not required. An object of the present invention is to provide a sidewalk boundary block capable of easily draining a road.

Further, the present invention forms a drainage groove which opens in front of the pedestrian roadway boundary block below the pedestrian roadway boundary block, thereby reducing drainage of the roadway without reducing the effective area of the roadway. It is an object of the present invention to provide a sidewalk road boundary block that constitutes an L-shaped block that can easily perform the above.

[0010]

A pedestrian road boundary block according to the present invention (Claim 1) has a substantially rectangular parallelepiped shape, and the front surface facing the longitudinal direction is on the road side, and the rear surface facing the longitudinal direction is the pedestrian side. A cross section perpendicular to the longitudinal direction of the pedestrian road boundary block, which is disposed so as to face the rectangular parallelepiped, has a substantially C-shaped cross section. Is formed, and the hollow has a concave serving as a drain groove below a lower end position of the hollow in the front surface of the block , and
The hollow in a section perpendicular to the longitudinal direction of the block
The width in the direction perpendicular to the center line of the recess is
It is formed so that it becomes narrower near the bottom of the concave part
Things.

[0011]

The pedestrian road boundary block according to the present invention (claim 2 ) is the pedestrian road boundary block (claim 1 ), wherein the hollow is formed as the drainage groove from the lower end of the front surface of the block. In the meantime, a substantially horizontal flat surface is formed.

[0013] The pedestrian road boundary block according to the present invention (Claim 3 ) is a reinforcing member of the above pedestrian road boundary block (Claim 2 ), which is provided inside the pedestrian road boundary block so as to surround the hollow notch. Steel bars are installed.

A pedestrian road boundary block according to the present invention (Claim 4 ) is a pedestrian road boundary block constituting an L-shaped block, and the front surface of the above-described pedestrian road boundary block (Claim 1) having the substantially rectangular parallelepiped shape. A flat roadbed portion extending toward the roadway and having a downward slope toward the roadway end on the upper surface thereof is integrally formed with the portion below the hollowed portion. It is like that.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1 Configuration 1. As shown in FIGS. 1 to 4, the sidewalk boundary block (Claim 1) according to the first embodiment of the present invention has a substantially rectangular parallelepiped shape, and a front surface (5) facing the longitudinal direction is on the roadway side. In the sidewalk boundary block (1) arranged so that the rear surface (4) facing the direction faces the sidewalk, the cross-sectional shape of the cross section perpendicular to the longitudinal direction is substantially the same over the entire length in the longitudinal direction of the substantially rectangular parallelepiped shape. A C-shaped hollow recess (38) extending uniformly in the longitudinal direction is formed, and the hollow recess (38) is located below the lower end (5a) position of the front of the block of the hollow recess (38). It has a concave portion (8) serving as a drainage groove , and in the longitudinal direction of the block (1).
To the center line of the hollow (38) in a vertical section
A recess (8) whose width in a direction perpendicular to the above becomes the above-mentioned drain groove.
It is formed so that it becomes narrower near the bottom of the
You. Thereby, the sidewalk roadway boundary block (1) is installed such that the lower end (5a) of the hollow portion (38) at the front surface (5) is located at the same height as the road surface of the roadways (11, 12), and By arranging a plurality of the sidewalk boundary blocks (1) along the roadway (12) at a predetermined gradient, water from the roadway (12) flows into the drainage ditch (8) and accumulates deeply. The inflow water (1) with respect to the volume of water (15)
5) The ratio of the area of contact with the wall surface of the drain groove (8) is reduced, and when the inflow water (15) flows through the drain groove (8), the inflow water (15) and the wall surface of the drain groove (8) , The drainage can be easily drained even if the installation gradient of the block (1) is slight. Further, since the drainage groove (8) is formed in the pedestrian road boundary block (1) itself, it only needs to be replaced with a conventional pedestrian road boundary block, and no large-scale installation work is required. Further, the effective area of the roadway (12) is not reduced. further,
It is possible to remove the portion where the hollow portion (38) is formed.
Using a concrete formwork (10)
The hook (1) can be easily manufactured. Also, drainage
The groove (8) can be easily cleaned.

[0016]

Configuration 2 . Walking road boundary block in the first embodiment of the present invention (claim 2), as shown in Figures 1-4, the configuration of the 1
In the sidewalk boundary block (1), the hollow (38) has the lower end (5) at the front of the block (1).
A substantially horizontal flat surface (9) is formed between a) and the concave portion (8) serving as the drainage groove. As a result, the heels of bicycle wheels and high heels of passersby,
It is possible to prevent the fitting into the drain groove (8) by mistake.

Configuration 3 . Walking road boundary block in the first embodiment of the present invention (claim 3), as shown in FIG. 4, in the above configuration 2 of the walking road boundary block (1), the walking road boundary block (1) Inside, a reinforcing bar (16) for reinforcement is provided so as to surround the hollowed portion (38). Thereby, the strength of the portion between the drain groove (8) and the bottom surface (2) of the sidewalk roadway boundary block (1) can be improved.

Configuration 4 Walking road boundary block in the first embodiment of the present invention (Claim 4), as shown in FIGS. 5 and 6, a walking road boundary block constituting the L-type blocks, the configuration of the 1
Of the above pedestrian road boundary block (1) (1)
A flat subgrade portion (20) extending toward the roadway and having a downward slope toward the roadway end on the upper surface thereof is provided on a portion of the front surface (25) of the 9) below the hollowed portion (48), This is formed continuously and integrally with the above-mentioned portion. Thereby, the above-described sidewalk boundary block (2)
1) is installed such that the upper surface (29) of the roadbed portion of the block (21) is located at the same height as the road surface of the roadway (12);
By installing a plurality of the blocks (21) at a predetermined gradient along the road (12), the road (1)
The water of (2) flows into the drain groove (28) and accumulates deeply, and the ratio of the contact area of the inflow water (15) with the wall surface of the drain groove (28) to the volume of the inflow water (15) decreases. As the inflow water (15) flows through the drain (28), the inflow water (1)
The fluid resistance between 5) and the wall surface of the drain groove (28) is reduced, so that the drain can be easily drained even if the installation gradient of the block (21) is small. Further, a drain groove (28) is provided below the wall (19) of the block (21).
Therefore, the effective area of the roadway (12) is not reduced.

[0020]

【Example】

Embodiment 1 FIG. FIG. 1 is a perspective view showing the structure of a pedestrian road boundary block according to Embodiment 1 of the present invention, in which 1 is a pedestrian road boundary block. The whole pedestrian road boundary block 1 is formed in a rectangular parallelepiped shape that is long in the left-right direction and has a trapezoidal cross section in the front-rear direction, and has a rectangular bottom surface 2 and a rectangular rear surface 4 perpendicular to the bottom surface 2. It has a rectangular upper surface 3 parallel to the bottom surface 2, a front surface 5 inclined backward, and left and right side surfaces 6, 7 perpendicular to the bottom surface 2 and parallel to each other. On the front side of the pedestrian road boundary block 1, the cross-sectional shape in the front-rear direction is substantially C over the entire length of the block 1 in the left-right direction.
Hollow recess 38 extending uniformly in the left-right direction to form a character
Are formed, and the front surface 5 of the hollow portion 38 is formed.
The recessed portion 8 located below the lower end position 5a of FIG. The cross section of the drain groove 8 is formed in a V-shape, and the cross-section of the hollow 38 in the front-rear direction is such that the width of the cross section in the direction perpendicular to the center line of the hollow 38 is the bottom of the drain groove 8. It is formed so that it becomes narrower as it approaches. The opening in the front surface 5 of the hollow portion 38 is located substantially at the center of the front surface 5, and a substantially horizontal flat surface 9 is provided between the lower end 5 a of the hollow surface 38 and the drain groove 8. Is formed.

The size of the sidewalk boundary block 1 according to the first embodiment is, for example, length L: 600 mm, height H1: 350 mm, and width W of the upper surface according to JISA5307.
1: 180 mm, bottom width W2: 215 mm, height H2 at the lower end at the front of the hollow, 100 mm, and width W4 at the upper end of the drainage groove: 80 mm.

FIGS. 2 (a) and 2 (b) are cross-sectional views schematically showing a method of manufacturing the sidewalk boundary block according to the first embodiment. In the figure, the same reference numerals as those in FIG. 10 is a concrete formwork, 10a is a side part of the concrete formwork 10 corresponding to the rear surface of the pedestrian roadway boundary block 1, and 10b is a concrete formwork 10 corresponding to the upper surface of the pedestrian roadway boundary block 1. Bottom, side 10
a is provided to be able to open and close with respect to the concrete formwork body 10.

Next, a method of manufacturing the sidewalk boundary block according to the first embodiment will be described with reference to FIGS. 2 (a) and 2 (b). First, pour concrete into the concrete formwork 10,
This is made to be flush with the upper surface of the concrete formwork 10 to form the bottom surface 2 of the sidewalk boundary block 1. Next, after the poured concrete is solidified to form the sidewalk boundary block 1, the side portion 10 a of the concrete formwork 10 is opened, and the sidewalk boundary block 1 is pulled out diagonally upward in the same direction as the hollow 38. Then, the sidewalk boundary block 1 is obtained as a final product.

Here, since the recessed recess 38 of the sidewalk roadway boundary block 1 is formed so that its width gradually becomes narrower toward the bottom of the drain groove 8, the concrete mold 10 can be removed. The sidewalk roadway boundary block 1 can be easily manufactured by using.

FIG. 3 is a sectional view showing an installation state of the sidewalk block 1 according to the first embodiment. In FIG. 3, the same reference numerals as those in FIG. 1 denote the same or corresponding parts.
1 is a concrete subgrade, 12 is an asphalt-paved road, 13 is a sidewalk, 14 is crushed stone, and 15 is inflow water. The road 12 has a predetermined downward slope formed on the road surface toward the side of the road 12 (the side of the sidewalk).
Is formed one step higher than the road 12. Then, a groove 31 is excavated at the boundary between the road 12 and the sidewalk 13, and the groove 31 is excavated.
At the bottom of the slab, a layer of shards 14 is formed, and on the slab 14, a concrete subgrade 11 is formed. The concrete subgrade 11 has a roadway 12
Is formed so as to be continuous with the road surface and have substantially the same gradient as the road surface, and at the end of the concrete road floor portion 11 on the side of the sidewalk 13, the concrete road floor boundary block 1 is provided with the concrete road floor portion 11. At the bottom surface 2 and the lower part of the front surface 5, and is fixed by the concrete subgrade 11. As for the sidewalk boundary block 1, the rear surface 4 is the sidewalk 1.
3, the height of the upper surface 3 is the same as the height of the road surface of the sidewalk 13, and the height of the lower end 5 a at the front surface 5 of the hollowed recess 38 is the height of the side of the upper surface of the concrete subgrade 11 on the side of the sidewalk. It is installed to be the same as. The left side surface 6 and the right side surface 7 of the pedestrian road boundary block 1 are connected to the right side surface 7 and the left side surface 6 of the other pedestrian road boundary block 1 in the thickness direction of the paper. A catchment basin (not shown) is provided at a predetermined location in the longitudinal direction of the roadway 12, and has a predetermined gradient toward the catchment basin, and a plurality of sidewalk roadway boundary blocks 1 12 are installed continuously along the longitudinal direction. In addition, the sidewalk block 1
Is provided with a drain groove 8, so that the bottom and bottom surface 2 of the drain groove 8 are provided.
The overall height is 350mm to ensure strength between
The height of the groove 31 is slightly higher than the conventional 300 mm, and it is necessary to dig a little deeper into the groove 31 accordingly.

For example, when rain falls on the road 12 on which the sidewalk road boundary block 1 is installed as described above, the rainwater
2 and the upper surface of the concrete subgrade 11, flows into the drain 8 from the opening of the hollow 38 in the sidewalk boundary block 1, flows through the drain 8 into the catchment basin, and is drained. You.

Here, since the water 15 flowing into the drain groove 8 is deeply accumulated in the drain groove 8, the fluid resistance between the water 15 and the wall surface of the drain groove 8 becomes small, and the installation slope of the footway boundary block 1 is reduced. Flows easily according to the gradient, even if
Drained to catch basin.

Further, since a substantially horizontal flat surface 9 is formed between the lower end 5a of the hollow portion 38 at the front surface 5 and the drain groove 8, the front surface 5 of the sidewalk roadway boundary block 1 is inclined rearward. Even if this is the case, it is possible to prevent a bicycle wheel, a heel of a high heel of a passerby, or the like from being accidentally fitted into the drain groove 8.

As described above, in the first embodiment, the cross section perpendicular to the longitudinal direction has a substantially C-shape over the entire length in the longitudinal direction of the pedestrian crossing boundary block 1. An extended hollow 38 is formed, and the hollow 38 is formed in the block 1 of the hollow 38.
The lower end 5a at the front surface of the hollowed portion 38 has the same height as the upper surface of the concrete subgrade 11 because the lower end 5a at the front surface of the hollow portion 38 At a predetermined slope along the roadway 12, water from the roadway flows into the drain 8 and accumulates deeply. The ratio of the contact area of the inflow water 15 to the wall of the drain groove 8 with respect to the volume of the inflow water 15 is reduced. The fluid resistance of
The drainage can be easily performed even if the installation gradient of the footway boundary block 1 is small.

Further, in the first embodiment, since the drainage groove 8 is formed in the sidewalk boundary block 1 itself, it is only necessary to replace it with a conventional sidewalk boundary block, and no large-scale installation work is required. Also, the effective area of the roadway 12 is not reduced.

In the first embodiment, the cross-section of the hollow 38 in the front-rear direction is such that the width of the cross-section in the direction perpendicular to the center line of the hollow 38 is
Is formed so as to be narrower as it is closer to the bottom of the sidewalk, so that the portion where the hollow portion 38 is formed can be removed from the mold, and the sidewalk boundary block 1 can be easily manufactured using the concrete formwork 10. Further, the drain groove 8 can be easily cleaned.

Also, in the first embodiment, a substantially horizontal flat surface 9 is formed between the lower end 5a of the hollowed recess 38 at the front of the block and the drainage groove 8, so that the bicycle wheels and the high heels of the passerby are formed. The heel or the like can be prevented from being accidentally fitted into the drain groove 8.

Embodiment 2 FIG. FIG. 4A is a top view showing the structure of a pedestrian road boundary block according to Embodiment 2 of the present invention, and FIG.
4A is a view taken in the direction of the arrow A in FIG. 4A. In the figure, the same reference numerals as those in FIG. 1 indicate the same or corresponding parts. It is a reinforcing bar arranged.

Pedestrian road boundary block 1 according to the second embodiment
Can be manufactured by the same method as that of the first embodiment except that the reinforcing bar 16 is disposed inside.

In the second embodiment, the reinforcing bars 16 are disposed inside the pedestrian road boundary block 1 so as to surround the drain groove 8 as described above. The strength of the portion between the two can be improved.

Embodiment 3 FIG. FIG. 5 is a perspective view showing the structure of a sidewalk boundary block (hereinafter simply referred to as an L-shaped block) constituting an L-shaped block according to Embodiment 3 of the present invention. In the drawing, reference numeral 21 denotes an L-shaped block. . The L-shaped block 21 includes a pedestrian road boundary block 19 corresponding to the pedestrian road boundary block of the first embodiment and a subgrade 20 corresponding to a concrete subgrade. The pedestrian road boundary block portion 19 is formed in a rectangular parallelepiped shape that is long in the left-right direction, and at a position at a middle height on the front side of the block portion 19,
Over the entire length of the block portion 19 in the left-right direction, a hollow recessed portion 48 having a substantially C-shaped cross-section in the front-rear direction and extending uniformly in the left-right direction is formed.
A flat roadbed section 20 extending forward and formed integrally with the above-described portion is formed in a portion of the front surface of the front surface 9 below the hollow portion 48. The roadbed portion 20 has a rectangular planar shape, and a predetermined downward slope is formed on the upper surface 29 to the side of the pedestrian road boundary block portion 19.
The recess 28 located below the rear end of the upper surface of the subgrade portion 8 of FIG. 8 functions as a drain groove. The cross section of the drain groove 28 is formed in a V-shape, and the cross section of the hollow 48 in the front-rear direction has a width in a direction perpendicular to the center line of the hollow 48 in the cross section.
It is formed so as to be narrower as it is closer to the bottom of the. 23
Is the upper surface of the sidewalk block 19, 24 is the rear surface of the L-shaped block 21, 26 is the left surface of the L-shaped block 21, 27
Is a right side surface of the L-shaped block 21.

The size of the L-shaped block according to the third embodiment is, for example, a length L: 60 according to JIS A5306.
0 mm, height H1: 175 mm, width W1: 100 mm of the top surface of the pedestrian road boundary block, width W2: 350 m of the bottom surface
m, width W3 of the upper surface of the subgrade: 250 mm, height H2 of the front end of the subgrade: 100 mm, width W4: 4 at the upper end of the drainage ditch
0 mm, gradient on the upper surface of the roadbed: 1/10.

The L-shaped block according to the third embodiment can be manufactured by the same method as in the first embodiment.

FIG. 6 shows an L-shaped block 21 according to the third embodiment.
FIG. 6 is a cross-sectional view showing the installation state of FIG. 3, wherein the same reference numerals as those in FIG. 3 and FIG.
0 is the front end of the upper surface 29 of the roadbed portion of the L-shaped block 21. In the third embodiment, as in the first embodiment, a groove 31 is formed at the boundary between the asphalt-paved road 12 and the sidewalk 13.
Is excavated to form a layer of crushed stone 14 at the bottom of the groove 31, and the L-shaped block 2 is formed on the layer of crushed stone 14.
1 is installed. The L-shaped block 21 is a
The front end 30 of the upper surface 29 is continuous with the road surface of the road 12, the rear surface 24 is in contact with the sidewalk 13, and the height of the upper surface 23 is the same as the height of the road surface of the sidewalk 13. Then, the left side surface 26 and the right side surface 27 of the L-shaped block 21
Are connected to the right side surface 27 and the left side surface 26 of the other L-shaped block 21 in the thickness direction of the paper. A catchment basin (not shown) is provided at a predetermined location in the longitudinal direction of the roadway 12. A plurality of L-shaped blocks 21 have a predetermined gradient toward the catchment basin, and Are installed continuously along the longitudinal direction of

When, for example, rain falls on the road 12 on which the L-shaped block 21 is installed as described above, rainwater flows on the road surface of the road 12 and the upper surface 29 of the road floor of the L-shaped block 21 to form a drain gutter. , And flows into the catchment basin through the drain groove 28 to be drained.

Here, since the water 15 flowing into the drain groove 28 is deeply accumulated in the drain groove 28, the fluid resistance between the water 15 and the wall surface of the drain groove 28 is reduced, and the installation gradient of the L-shaped block 21 is reduced. Even a small amount flows easily according to the gradient and is drained to the catchment basin.

As described above, in the third embodiment, L
In the lower part of the front side of the sidewalk boundary block portion 19 of the mold block 21, a hollow recessed portion 48 having a substantially C-shaped cross-section in the front-rear direction and extending uniformly in the left-right direction over the entire length of the block 21 in the left-right direction. , The hollow 48
Is formed so that the lower end of the front surface 5 of the pedestrian road boundary block portion 19 is continuous with the rear end of the upper surface of the roadbed portion 20, and the hollow portion 48 is located below the rear end of the upper surface of the roadbed portion 20. Since the concave portion 28 that forms the drainage groove, the L-shaped block 21 is attached to the upper surface 29 of the roadbed portion of the L-shaped block 21.
Are installed at the same height as the road surface of the roadway 12 and the L-shaped blocks 21 are installed so as to be continuous at a predetermined gradient along the roadway 12, so that the water of the roadway 12 When the inflow water 15 flows through the drain groove 28, the inflow water 15 and the drain water are drained and accumulated deeply, and the ratio of the contact area of the inflow water 15 with the wall of the drain groove 28 to the volume of the inflow water 15 decreases. The fluid resistance between the wall of the groove 28 and the L-shaped block 21 can be easily drained even when the installation gradient of the L-shaped block 21 is small.

In the third embodiment, the drain groove 28 is provided below the pedestrian road boundary block 19 of the L-shaped block 21.
Therefore, the effective area of the road 12 is not reduced.

In the first embodiment, the case where the cross section of the pedestrian road boundary block 1 in the front-rear direction is trapezoidal with the front surface inclined backward is described. The present invention can be applied to the case where the surface has a trapezoidal shape inclined forward, or the case where both the front surface and the rear surface have a trapezoidal shape inclined inward.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the structure of a footway boundary block according to Embodiment 1 of the present invention.

FIG. 2 is a cross-sectional view (FIGS. 2 (a) and 2 (b)) showing a method for manufacturing a footway boundary block according to the first embodiment of the present invention.

FIG. 3 is a cross-sectional view schematically illustrating an installation state of a footway boundary block according to the first embodiment of the present invention.

FIG. 4 is a top view (FIG. 2 (a)) showing a structure of a pedestrian road boundary block according to a second embodiment of the present invention, and is a view as viewed from an arrow A in FIG. 2 (a) (FIG. 2 (b)).

FIG. 5 is a perspective view showing a structure of a sidewalk boundary block forming an L-shaped block according to Embodiment 3 of the present invention.

FIG. 6 is a cross-sectional view schematically showing an installation state of a sidewalk block forming an L-shaped block according to a third embodiment of the present invention.

[Explanation of symbols]

1 Border block, 2 base, 3 top, 4 back, 5 front, 6 left, 7 right, 8 drainage,
9 Flat surface, 10 Concrete formwork, 11 Concrete subgrade, 12 Roadway, 13 Sidewalk, 15 Inflow, 1
6 Reinforcement, 19 Pedestrian road boundary block, 20 subgrade, 21 L-shaped block, 22 base, 23 Pedestrian road boundary block top, 24 rear, 25 Pedestrian road boundary block front, 26 left side, 27 right side, 28 Drainage ditches, 29 Roadbed upper surface, 30 Front end of roadbed upper surface, 3
8,48 Hollow recess.

Claims (4)

(57) [Claims] A pedestrian road boundary block having a substantially rectangular parallelepiped shape and a front surface facing the longitudinal direction facing the roadway and a rear surface facing the longitudinal direction facing the sidewalk, A hollow recess extending uniformly in the longitudinal direction is formed over the entire length in the direction, the cross-sectional shape of the cross section perpendicular to the longitudinal direction being substantially C-shaped, and the hollow recess is formed in the front surface of the block of the hollow recess. It has a concave portion serving as a drainage groove below the lower end position, and has a cross section perpendicular to the longitudinal direction of the block.
The width in the direction perpendicular to the center line of the hollow
It is formed so that it becomes narrower near the bottom of the concave part that becomes the drain
The pedestrian road boundary block, which is characterized in that: 2. The footway boundary block according to claim 1, wherein the hollow is formed from a lower end of a front surface of the block.
An almost horizontal flat surface is formed between the drain grooves.
A pedestrian road boundary block characterized by being formed . 3. The pedestrian road boundary block according to claim 2 , wherein a reinforcement is provided inside the block so as to surround the hollowed portion.
Pedestrian road boundary block, in which reinforcing bars are arranged . 4. A pedestrian road boundary block forming an L-shaped block.
2. The substantially rectangular parallelepiped shape of the sidewalk boundary block according to claim 1.
A roadway is located on the lower part of the front of the
On the upper surface of the road
The flat roadbed has a continuous
A pedestrian road boundary block characterized by being formed .